The tower had reached the 22nd floor by that point, with structural errors affecting 15 floors. The Harmon had significant construction defects that went unnoticed by inspectors until July 2008, with the discovery of faulty rebar installation that was handled by a subcontractor. The tower originally was to rise 49 stories, and would include 400 hotel rooms and 207 condominiums. It was scheduled to open with the rest of Cit圜enter in late 2009.
It was designed by Foster and Partners as a non-gaming hotel, and was to be operated by The Light Group. The Harmon was developed by MGM Mirage and Dubai World, with Perini Building Company as general contractor. It was named after its location at the intersection of Harmon Avenue and Las Vegas Boulevard. The Harmon was an unfinished high-rise building at the Cit圜enter development, located on the Las Vegas Strip in Paradise, Nevada.